Across the Pentax line of sport optics, and even binoculars as a whole, the 8x43 DCF ED Binocular stands out as a great entry. Part of Pentax's super-premium DCF ED series of extremely rugged roof prism units, it is blessed with pristine Extra-Low Dispersion (ED) glass elements. As good as Pentax's previous efforts were, such as the very fine DCF SP models, nothing works quite like ED glass when it comes to eliminating any trace of chromatic aberrations. The resolving power of the edge of your subject is impeccable, and the 8x43 DCF ED can hold detail in dark-colored birds or wildlife even when cast against a bleached, overcast sky.